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Location Northern Mariana Islands (to USA), Saipan Island
Central coordinates 145o 45.00' East  15o 10.00' North
IBA criteria A1, A2
Area 3,315 ha
Altitude
Year of IBA assessment 2007





Site description The proposed IBA is located in the central part of Saipan Island. The area includes the central Mount Topachau, which runs down the center of the island, Lake Susupe and associated wetlands, and the Kagman area and Forbidden Island. Parts of the Kagman area are protected as a Conservation Area and Lake Susupe is a Limited Take area.

Key Biodiversity The Tapochau-Susupe-Kagman IBA includes a number of areas with habitats important to critical bird species. The Kagman area and adjacent Forbidden Island are home to established populations of Micronesian Megapodes (Marshall pers. comm.), White-throated Ground-Doves, and Mariana Fruit-Doves; as well as the island’s largest population of Golden White-Eyes. Part of the Kagman area is protected by law as the Kagman Wildlife Conservation Area (Schroer, 2007). Lake Susupe, which is also regulated as a Limited Take Zone by CNMI law, is included both for its value as a wetland (and home for Mariana Common Moorhens) and because it is home to large numbers of Nightingale Reed Warblers. Mount Tapochau (surveyed as part of the Garapan area) is home to the bulk of the current population of Mariana Swiftlets, in addition to Saipan’s other critical species.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Micronesian Scrubfowl Megapodius laperouse resident  1982  present  A1, A2  Endangered 
Mariana Fruit-dove Ptilinopus roseicapilla resident  1982  50-249 individuals  unknown  A1, A2  Endangered 
White-throated Ground-dove Alopecoenas xanthonurus resident  1982  50-249 individuals  unknown  A1, A2  Near Threatened 
Mariana Swiftlet Aerodramus bartschi resident  1982  2,500-9,999 individuals  unknown  A1, A2  Endangered 
Micronesian Myzomela Myzomela rubratra resident  1982  10,000-19,999 individuals  unknown  A2  Least Concern 
Rufous Fantail Rhipidura rufifrons resident  1982  20,000-49,999 individuals  unknown  A2  Least Concern 
Nightingale Reed-warbler Acrocephalus luscinius resident  1982  2,500-9,999 individuals  unknown  A1, A2  Critically Endangered 
Bridled White-eye Zosterops conspicillatus resident  1982  100,000-499,999 individuals  unknown  A1, A2  Endangered 
Golden White-eye Cleptornis marchei resident  1982  20,000-49,999 individuals  unknown  A1, A2  Critically Endangered 
Micronesian Starling Aplonis opaca resident  1982  1,000-2,499 individuals  unknown  A2  Least Concern 

IBA Monitoring

2007 medium not assessed not assessed
  unset
-

Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species likely in short term (within 4 years) majority/most of area/population (50-90%) slow but significant deterioration medium
Residential and commercial development commercial and industrial development likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Topachau-Susupe-Kagman. Downloaded from http://www.birdlife.org on 27/12/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife